Looping failed if same value skipped

``hello anyone can you give me tips a random from array 2d i make a small code example

public function autoRandom($simpankota) {

    $alfa = 1.0;
    $beta = 1.0;
    $semut = 3;
    $rho = 0.5;
    $tijawal = 0.01;
    //$route[] = $simpankota;
    $new = new addLat();
    //$route1 [1] = $simpankota[sizeof($simpankota) - 1];

    $route[0] = 0;

    $route1[] = reset($simpankota);
      echo "<h1> apakah kota awal" . reset($simpankota) ."</h1>";
    $d = array();
    $simpankota2 = $simpankota;
    $simpankota1 = $simpankota;
    $simpankota3 = $simpankota;

    $zx = 0;
    $hit = 1;

    foreach ($simpankota1 as $key1 => $value1)
    {
        $zx++;

        $beban = array();
        $beban1 = array();
        $beban2 = array();
        $prob = array();

        echo "<h2>" . $simpankota1[$route] ."</h2>";

        foreach ($simpankota2 as $key2 => $value2) 
        {
            $berangkat = reset($simpankota1);
            $tujuankota = $value2;
            $prob = $this->getProbabilitas($berangkat, $tujuankota) * $tijawal;
            $prob1[] = $prob;
            $ar = array_sum($prob1);
        }

        foreach ($simpankota3 as $key3 => $value3) 
        {

            $start = reset($simpankota1);
            $value2 = $value3;

            if ($start != $value2) 
            {
                $beban1[] = ($tijawal * $alfa) * ($this->getProbabilitas($start, $value2)) / $ar;
                $beban2[] = array_sum($beban1);
            }
            else 
            {
                $beban1[] = ($tijawal * $alfa) * ($this->getProbabilitas($start, $value2)) / $ar;
                $beban2[] = array_sum($beban);
            }
        }
            $tempnama1 = 'null';
            $x;
            $tempselisih = 100000000000;

            $sum = $this->randomD();

            $beban = $beban2;
            $xzz = sizeof($beban);


            for ($i = 0; $i < sizeof($beban); $i++)
            {
                if ($sum > $beban[$i]) 
                {
                    if ($tempselisih > $sum - $beban[$i]) 
                    {
                        $tempselisih = $sum - $beban[$i];
                        $x = $tempselisih;
                        $tempnama1 = $i;
                    }
                } 
                elseif ($beban[$i] > $sum) 
                {
                    if ($tempselisih > $beban[$i] - $sum)
                    {
                        $tempselisih = $beban[$i] - $sum;
                        $x = $tempselisih;
                        $tempnama1 = $i;
                    }
                } 
                $flag=true;
                if ($tempnama1 == true)
                {
                    $beban2[$tempnama1]= 999;
                    $flag=false;
                }
            }


            $route[sizeof($route)] = $tempnama1;
    }
    $route [sizeof($route)] = sizeof($simpankota) - 1;
    echo "<h1> <pre>KAMPRET" .print_r($route,true) ."</pre></h1>";
    return $route;
}

but if i try open show like Array ( [0] => 0 [1] => 2 [2] => 4 [3] => 4 [4] => 4 [5] => 4 [6] => 4 )

but i want make like a if index visited not looping again if checked not itteration looping again Array ( [0] => 0 [1] => 2 [2] => 5 [3] => 3 [4] => 1 [5] => 4 [6] => 6 )

if value checked skip itteration and not get value same again
can you give me tips ?

so do you have some tips? sorry for bad english and bad logic:(

my full code in here

http://ift.tt/1PxbcNB